update changed firefox to stack all my open web pages in one place. before update i could click on weather then click on slickdeals and they would be side by side in the taskbar. now one is underneath the other. after 2 day os reading posts i still dont know what the difference between tabs and windows is. all i want to do is look at the taskbar and pick whatever web site i want. admin user account has not been updated to the new firefox and works fine. thanks